Environmental Studies · Biology

Ecology and Biodiversity

1,739 Questions

Ecology and biodiversity are vital topics in environmental studies, covering ecosystem structures, species diversity, and environmental impacts. These concepts are frequently tested in competitive examinations for civil services and state selections. The questions cover carrying capacity, ecological succession, and conservation fundamentals.

Species richness measurementTypes of ecological diversityBiome distribution factorsCarrying capacity conceptEcosystem servicesEnvironmental Impact Assessment

Ecology and Biodiversity Questions

Multiple choice evs digestion of food diseases caused by changes in lifestyle nutrition deficiency diseases study of ecological pyramids

Maintaining ecological balance in future will mainly depend on :

  1. nature's own process of changes and interaction

  2. adaptation of all living species to changes in climate

  3. man's caution and ability to allow nature's own balance to continue

  4. man's ability to maintain and develop species according to his needs.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Maintaining ecological balance requires human intervention and restraint to prevent the disruption of natural systems, as human activity is the primary driver of current imbalances.

Multiple choice

What is a hotspot? (Advanced)

  1. A really hot area

  2. an area that has lost much of its original habitat

  3. An area with an abundance of biodiversity

  4. An area where the human population growth is exponential
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In conservation biology, a biodiversity hotspot is a biogeographic region with significant levels of biodiversity that is threatened with destruction.

Multiple choice geography the biosphere alternatives for minimising depletion of natural resources components of environment effects and successes of environment conservation

What is true of ecosystem?

  1. producers are more than primary consumers

  2. secondary consumers are the largest and most powerful.

  3. both a and b

  4. none of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Plants are called producers because they are able to use light energy from the sun to produce food (sugar) from carbon dioxide and water. Animals cannot make their own food so they must eat plants and/or other animals. They are called consumers. - 
Primary consumers are animals that eat primary producers; they are also called herbivores (plant-eaters). Secondary consumers eat primary consumers. They are carnivores (meat-eaters) and omnivores (animals that eat both animals and plants).
Multiple choice biology evolution and biodiversity life introduction to plant kingdom classification of organisms

In structure of an ecosystem, composition of biological communities include:

  1. Rate of production

  2. Species population, biomass, distribution

  3. Rate of temperature change

  4. Light and temperatue
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The structure of an ecosystem is defined by its biotic and abiotic components. The composition of biological communities specifically refers to the species present, their population sizes, their biomass, and their spatial distribution.

Multiple choice history buildings, paintings and books man's lifestyle in a society our life in society tracing changes through a thousand years

What does Habitat refers to?

  1. Environment of a region

  2. The social environment

  3. Economic lifestyle

  4. All of above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The natural home or environment of an animal, plant, or other organism is known as that animal's habitat. It also includes the social environment and Economic lifestyle of the people as Habitat encompasses a person's usual or preferred surroundings.

Multiple choice origin of universe universe and organic evolution biology

Term biosphere is used for the zone of earth where life exists

  1. On lithosphere

  2. In the hydrosphere

  3. In the lithosphere and hydrosphere

  4. In the lithosphere, hydrosphere and atmosphere
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The biosphere is the global ecosystem composed of living organisms (biota) and the non-living (abiotic) factors from which they derive energy and nutrients, spanning the lithosphere, hydrosphere, and atmosphere.

Multiple choice origin of universe universe and organic evolution biology

What is function of biosphere?

  1. Competes for resources

  2. Cause destruction

  3. to sustain life

  4. Living and non living organism
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The primary function of the biosphere is to provide the necessary conditions and resources to sustain life on Earth.

Multiple choice origin of universe universe and organic evolution biology

"To meet with the deficit which occurs due to imbalance in the rate of influx and efflux" is the function of?

  1. Biosphere

  2. Reservoir

  3. Solar energy

  4. Species diversity
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A reservoir in ecological terms acts as a storage component that buffers against imbalances in nutrient or energy cycles. It helps maintain stability when the rate of influx and efflux of materials fluctuates.

Multiple choice origin of universe universe and organic evolution biology

'Biosphere' is a thin sphere that encapsulates the;

  1. Earth

  2. Universe

  3. Humans

  4. Plants and Animals
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The biosphere is the global ecosystem composed of living organisms (biota) and the nonliving (abiotic) factors from which they derive energy and nutrients. It is the thin layer of life surrounding the Earth.

Multiple choice origin of universe universe and organic evolution biology

The Part of earth and atmosphere supporting life is _____________.

  1. Biosphere

  2. Biome

  3. Ecotone

  4. Biota
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The entire inhabited part of the earth and its atmosphere (including the living and non living components) forms the biosphere.

So, the correct answer is 'Biosphere'

Multiple choice origin of universe universe and organic evolution biology

Choose the correct answers from the alternatives given .
All living organisms on the earth constitute

  1. biome

  2. biosphere

  3. population

  4. community
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The biosphere is the biological component of earth systems, which include the lithosphere, hydrosphere, atmosphere. The biosphere includes all living organisms on earth. together with the dead organic matter produced by them.

Multiple choice biology mineral nutrition in plants nutrients and nutrition essential and non-essential mineral elements transport in the xylem of plants

The character of an ecosystem is determined by the environmental factor, which is shortest in supply, this is called as

  1. Law of minimum

  2. Law of diminishing returns

  3. Law of limiting factors

  4. Law of supply and demand
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Law of minimum is popularly known as Leibig's law of minimum. 

According to this law the growth is controlled not by the total amount of resources available, but by the scarcest resource (called as limiting factor). 
It has wide ranging applications and one application is ecology. In ecological studies the character of an ecosystem is determined by the environmental factor, which is shortest in supply. For example, type of forest will be decided not by light or soil but by water availability. If water is present in less amount, no matter how abundant is the supply of other resources, only thorny or scrub forests will develop.